3{ 2+3(2^2 +6)] +3^3
Follow the PEMDAS order of operations
Work the parentheses from the inside out
The exponents on the innermost parentheses
3{ 2+3(4 +6)] +3^3
Always work the parentheses from the inside out so add 4 and 6 to make 10
Now add inside the parentheses
3{ 2+3(10)] +3^3
Multiply inside the brackets, 3*10 = 30
3{ 2+30] +3^3
We still have brackets so add 2 and 30 inside the brackets
Now add inside the brackets
3(32) +3^3
The brackets now become multiplication, so they are treated as multiplication instead of brackets because there is a single number inside.
Now Exponents next
3(32) + 27
Multiply next
96 +27
Add
123
Answer 123